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Round|Lab Grown|IGI

1.51ct I SI2 Round Lab Grown Diamond

EX • I/SI2 • IGI LG407941771

Shape and cutting style on the report: Round brilliant

Certificate IGI LG407941771

Diamond specifications and retailer prices

From HK$6,590 HKD
As of November 5, 2026
Save HK$29,537 HKD (82%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$36,127 HKD at MOH London · As of November 3, 2026
View at MOH London

About this 1.51ct lab-grown round diamond

This 1.51ct lab-grown round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG407941771 or 407941771. Listed at 11 retailers as of November 3, 2026, with prices from HK$6,590 to HK$36,127, a HK$29,537 spread on the same certified stone. MOH London lists it at HK$36,127. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.5°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG407941771
Dimensions7.57 × 7.51 × 4.47 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD) Type IIa
Top View
7.57 mm7.51 mm1.51 ctI / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG407941771
Side View
Table 59.0%Crown 31.5°Girdle: THN-MEDPavilion 41.4°Culet: NoneDepth 59.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: HK$36,127 HKD|Low: HK$6,590 HKD|High: HK$36,616 HKD|Avg: HK$16,201 HKD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 6, 2026
Retailer 7HK$6,590 HKD
Retailer 8HK$9,697 HKD
Retailer 11HK$10,544 HKD
Retailer 13HK$10,850 HKD
Retailer 9HK$11,242 HKD
Retailer 14HK$11,242 HKD
Retailer 5HK$13,141 HKD
Retailer 2HK$13,972 HKD
Retailer 4HK$15,847 HKD
Retailer 10HK$17,832 HKD
Retailer 12HK$21,080 HKD
Retailer 3HK$21,543 HKD
Retailer 6HK$25,175 HKD
MOH LondonHK$36,127 HKD

39 data points across 14 retailers

11 retailersHK$6,590 HKD to HK$36,127 HKD

A
Cheapest Retailer
-
HK$6,590 HKD
B+
Retailer 2
-
HK$9,697 HKD
View
B+
Retailer 3
-
HK$10,544 HKD
View
B+
Retailer 4
-
HK$10,850 HKD
View
Final sale: no returns
B+
Retailer 5
-
HK$11,242 HKD
View
Retailer 6
-
HK$11,242 HKD
View
Price last confirmed 25 days ago
B+
Retailer 7
-
HK$13,972 HKD
View
B
Retailer 8
-
HK$17,832 HKD
View
B
Retailer 9
-
HK$21,080 HKD
View
B
Retailer 10
-
HK$21,543 HKD
View
Most Expensive
B
MOH London
LG407941771 · Nov 3
HK$36,127 HKD
£3,626 GBP
View
10 more retailers have this diamond
Prices start from HK$6,590 HKDSave up to HK$29,537 HKD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.51ct Round
HK$6,590 HKD